List of Welsh principal areas by population

Rank
District
Population
Population density/km²
Styleand
1
Cardiff
362,800
2,574
City and county
2
Swansea
245,500
646
City and county
3
Rhondda Cynon Taf
239,100
563
County borough
4
Carmarthenshire
186,500
78
County
5
Caerphilly
180,800
651
County borough
6
Flintshire
155,200
354
County
7
Newport
151,500
795
City and county
8
Bridgend
144,300
575
County borough
9
Neath Port Talbot
142,100
321
County borough
10
Wrexham
135,600
269
County borough
11
Powys
132,500
25
County
12
Vale of Glamorgan
130,700
394
County borough
13
Pembrokeshire
124,700
77
County
14
Gwynedd
123,700
48
County
15
Conwy
116,900
103
County borough
16
Denbighshire
95,200
113
County
17
Monmouthshire
93,600
110
County
18
Torfaen
92,300
734
County borough
19
Ceredigion
73,100
40
County
20
Isle of Anglesey
69,800
98
County
21
Blaenau Gwent
69,600
640
County borough
22
Merthyr Tydfil
60,000
537
County borough

Question: What are the two most populous areas in Wales?
Answer: Swansea is the second most populous area in Wales, after Cardiff.